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Mixtures of quaternary compounds

a technology of quaternary compounds and mixtures, applied in the field of chemical manufacture, can solve the problems of inherently unstable, high undesirable phase separation, and high utilization of emulsifiers, and achieve the effect of improving the formulation of hair conditioning products

Inactive Publication Date: 2005-01-04
CRODA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Also provided is a method of improving formulation of hair conditioning products by providing mixtures of (a) at least one dialkyl quat in the amount of from about 10% to about 90% by weight of the composition; and (b) at least one monoalkyl quat in the amount of from about 10% to about 90% by weight of the composition. The mixture of two components, wherein one component is selected for primary product performance, and another component is selected for its contribution to proper emulsification of the hair cond

Problems solved by technology

For this reason, most emulsions are thought to be thermodynamically unfavorable and therefore inherently unstable after formation.
Since the products formulated as emulsions are usually stored for substantial periods of time prior to use, this separation of phases is highly undesirable.
The selection and utilization of emulsifiers is one of the challenges in formulating emulsions.
It is known that hair may be negatively affected by atmospheric agents, chemical treatments, and the like, resulting in damaged hair, which lacks softness and which may be difficult to disentangle or style.
The '795 patent mentions the possibility of mixtures of these imidazoline-based compounds, but does not provide their content or other information about such mixtures.
Also, the prior art does not provide information about the relationships between primary product performance, such as performance in hair conditioning products, and emulsification characteristics of quats and / or quat mixtures in emulsion-formulated products.

Method used

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  • Mixtures of quaternary compounds
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Examples

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Effect test

example 1

Preparation of 1-methyl-1-((erucylamido-)ethyl)-2-erucyl immidazolinium methyl sulfate

3132 g (4.62 moles) of erucic acid and 216 g (2.1 moles) of diethylenetriamine are placed in a dry stirred pressure vessel fitted with a nitrogen inlet. The vessel is purged with nitrogen and heated to 170° C. for 4-5 hours. The reaction mixture is then heated to 180° C. and vacuum is applied for another 4-5 hours. The reaction mixture is cooled to 95-100° C. and approximately 1.5 kg of cetearyl alcohol is added. The reaction mixture is further cooled to 75-80° C. and 250 g of dimethyl sulfate is slowly added with stirring. Once all dimethyl sulfate is added, the reaction mixture is held at 75-80° C. for approximately one hour, providing 1-methyl-1-((erucylamido-)ethyl)-2-erucyl immidazolinium methyl sulfate as the product.

example 2

Preparation of 1-methyl-1-(erucic rapeseed-)-ethyl)-2-(erucic rapeseed-)immidazolinium methyl sulfate (Mixture of dialkyl imidazoline Quats of Hydrogenated Rapeseed Oil)

1843.6 g (1.88 moles) of hydrogenated rapeseed oil and 283.34 g (2.75 moles) of diethylenetriamine were placed in a dry stirred pressure vessel fitted with a nitrogen inlet. The vessel was purged with nitrogen and heated to 165° C. for 5 hours until a base value of 76 was reached. The reaction mixture was then heated to 190° C. and vacuum was applied for 5 hours to obtain a 94% tertiary amine content. The resulting imidazoline intermediate was then cooled to 95° C. and 1772 g of cetearyl alcohol were added to act as solvent. The reaction mixture was further cooled to 85° C. and 330 g (2.6 moles) of dimethyl sulfate were slowly added over a 30-minute period with stirring. Once all dimethyl sulfate was added, the reaction mixture was held at 85-90° C. for another 60 minutes. The resulting light yellow solid product inc...

example 3

Preparation of 1-methyl-1-N-(n-propyl)-2-erucyl immidazolinium methyl sulfate

% of totalTotalcationiccationicComponentIngredientactivityactivityComponent (a)Mixture of70%45%Table 1Component (b)Compound30%(XXIII)SolventMixture of—cetearylalcohol (80%)and 1,3-butanediol(20%)

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Abstract

Compositions that include mixtures of (a) at least one dialkyl quat in the amount of from about 10% to about 90% by weight of the composition; and (b) at least one monoalkyl quat in the amount of from about 10% to about 90% by weight of the composition are provided. Various embodiments are provided. In one embodiment, the mixtures include dialkyl immidazoline quats and monoalkyl immidazoline quats. In one embodiment, the mixtures include dialkyl immidazoline quats and monoalkyl ammonium quats. Various methods of making immidazoline quats and quat mixtures, personal care and cosmetic products and formulations that contain the immidazoline quats and quat mixtures, methods of making such personal care and cosmetic products and formulations, and methods of using the such immidazoline quats, quat mixtures, and personal care and cosmetic products and formulations are also provided.

Description

FIELD OF THE INVENTIONThe present invention relates to the field of chemical manufacture and in particular, personal care products and cosmetics. It provides compositions that include quaternary compounds various personal care and cosmetic products, formulations that include such compositions, as well as methods of their manufacture, use, and other related methods.BACKGROUND OF THE INVENTIONEMULSIONS AND EMULSIFICATIONAn emulsion, more precisely a liquid / liquid emulsion, is a two-phase system of two immiscible liquids (usually, incompletely immiscible), with one of the phases being dispersed in the form of droplets in the other phase. Emulsions are preferred forms for the cosmetic and personal care products because they allow for the combination of otherwise immiscible ingredients and can provide significant economic advantages. Also, the public favors the feel and look of the emulsions. For these reasons, among others, a large proportion of modern cosmetic and personal care product...

Claims

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Application Information

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IPC IPC(8): A61K8/44A61K8/41A61K8/30A61K8/49A61Q19/00A61Q17/04A61Q5/02A61Q5/12C11D1/38C11D1/645C11D1/62A61K8/00A61K8/02A61K8/31A61K8/40A61K8/89A61K8/891A61K8/97A61Q5/00A61Q19/10C09K23/18C09K23/32
CPCA61K8/416A61K8/44A61K8/4946A61Q5/02C11D1/645A61Q15/00A61Q17/04A61Q19/00A61Q19/10A61Q5/12A61K2800/596C11D1/62
Inventor PEREIRA, ABEL G.BARINOVA, HELENA S.
Owner CRODA
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